OK, now it's time to calm down a little bit. Sure, it sounded a little scary, but as TwoFeetThick happily pointed out, we have no idea what "a long time" means, and Tacoma Rock City brings us some good news. It seems that Pearl Jam's publicist, Nicole Vandenburg, had this to say on the matter:
(It's) nothing serious. He says that at the end of all tours, meaning that the tour is over. I think the remarks got a bit lost in translation.